How to be FASTTTT while working out the solutions during the ModelOff competition?

Board Regular

I will be attempting the ModelOff competition in its 2017 edition. I have attempted it in the past as well. I have observed (like you all!) that one has to be really really quick while working out the solutions. I was wondering whether there are certain ideas / tips/ tricks to be fast in solving the ModelOff questions. Can someone throw light on what can be done to achieve the same?